://Filter Paper Grade Comparison between Hawach and Whatman

Filter Paper Grade Comparison between Hawach and Whatman

Learn about Hawach
Hawach scientific is a manufacturer specializied in laboratory consumables including filter paper, membrane filter, extraction thimbles, syringe filter, vials, pipette, vacuum pump and so on, which has 15 years of experience and good reputation in the filter industry.
We stricly control the quality in production, so our quality is equivalent to Whatman. From now on our products have been exported to more than 150 countries and regions. Here’s a comparison between Hawach and other famous brands, hope this introduction will give you a better understanding of Hawach’s products.
Grade comparison
1. Qualitative Filter paper- standard grades
Made from high-quality linters, with average 0.1% ash content, supply in slow, medium and fast flow rate

Hawach BIO-1 BIO-2 BIO-4 BIO-5 BIO-6
Whatman Grade 1 Grade 2 Grade 4 Grade 5 Grade 6
Advantec 2 232 1 235 131
Munktell No.1/1F No.2/150 1288/3 293/120H 1290/1001
Ahlstrom 601 642 631 610 950
Macherey

Nagel

616 616md 1670 619eh 619eh

Technical Data

Grade Partical

retention

Appearance Filtration

speed

Ash content % Basic weight

g / m2

Wet burst

(mm H₂O)

BIO-1 11um smooth Medium < 0.1 84 > 140
BIO-2 8 um smooth Medium < 0.1 84 > 140
BIO-4 20um smooth fast < 0.1 84 > 120
BIO-5 2.5um smooth slow < 0.1 84 > 180
BIO-6 3.0um smooth slow < 0.1 84 > 180

2. Wet strengthened grades
High wet strength and widely used to assay sucrose in cane sugar

Hawach BIO-91 BIO-113
Whatman Grade 91 Grade 113
Advantec n/a n/a
Munktell 55/N 6 S/N
Ahlstrom 615 n/a
Macherey Nagel n/a n/a

Technical Data

Grade Separating property Filtration

seconds

Filtration

speed

Ash content % Pore

size

Basic weight

g / m2

Wet burst

(mm H₂O)

BIO-91 PbSO4 35-70s Medium <0.13 10um 84 >=320
BIO-113 Fe(OH)3 <35s fast <0.13 30um 68 >=320

3. Quantitative Filter paper-Ashless Grades (Ash <0.01%)
Suited for quantitative routine analysis and acid-washed

Hawach BIO-40 BIO-41 BIO-42 BIO-43 BIO-44
Whatman Grade 40 Grade 41 Grade 42 Grade 43 Grade 44
Advantec No.5B 7 5c   – 6/4 A
Munktell 390 00M/389 393/00H 392/00A 391
Ahlstrom 74     – 94 75   95
Macherey

Nagel

640d 640m 640de 640md 640de

Technical Data

Grade Partical

retention

Appearance Filtration

speed

Ash content % Basic weight

g / m2

Wet burst

(mm H₂O)

BIO-40 8.0um smooth Medium <0.007 104 >180
BIO-41 20-25um smooth fast <0.007 104 >180
BIO-42 2.5um smooth slow <0.007 104 >200
BIO-43 16um smooth Medium-fast <0.007 104 >180
BIO-44 3um smooth slow <0.007 104 >200

4.Quantitative Filter papers-Hardened Low Ash Grades

Hawach BIO-50 BIO-52 BIO-54
Whatman Grade50 Grade52 Grade54

Technical Data

Grade Partical

retention

Appearance Filtration

speed

Ash content % Basic weight

g / m2

Wet burst

(mm H₂O)

BIO-50 2.7um smooth Slow <0.011 100 >200
BIO-52 7um smooth medium <0.011 100 >180
BIO-54 20-25um smooth fast <0.011 100 >180

5.Quantitative Filter papers-Hardened Ashless Grades

Hawach BIO-540 BIO-541 BIO-542
Whatman Grade540 Grade541 Grade542

Technical Data

Grade Partical

retention

Appearance Filtration

speed

Ash content % Basic weight

g / m2

Wet burst

(mm H₂O)

BIO-540 8 um smooth medium <0.011 100 >180
BIO-541 20-25um smooth Fast <0.011 100 >180
BIO-542 2.7um smooth slow <0.011 100 >200
2018-10-12T03:55:42+00:00October 12th, 2018|